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2020 Outback Onyx XT, 996 Carrera 4S, ‘68 Mustang Fastback
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Discussion Starter #1
1st time Subie owner here and this is my 2nd day in my Onyx XT. The miles to empty shows 160 miles but the tank is 98% full per the gauge. The app shows the same numbers. The Average MPG is way off too. I know how to reset the trip counter, but do I need to reset the range? If so, how?

Has anyone seen this? My last SUV was a '16 Range Rove
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r Sport SVR which was a beast but nightmare to own. I hope this works itself out. Any input would be appreciated.
 

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2020 Outback Onyx XT
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Like Ktiemann said above, don't worry about mileage during the first tank of gas.

Also, the mileage figures are very inaccurate when you first reset the trip counter. This is because the mileage is calculated with fuel used and distance traveled since the counter was reset, in the beginning, small changes to either can have huge swings in mpg calculations.

I reset my trip counter every fill up, so it is always fun to see mpg numbers in the 60mpg range when coasting on a flat road at 45m/h.
 
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Like Ktiemann said above, don't worry about mileage during the first tank of gas.

Also, the mileage figures are very inaccurate when you first reset the trip counter. This is because the mileage is calculated with fuel used and distance traveled since the counter was reset, in the beginning, small changes to either can have huge swings in mpg calculations.

I reset my trip counter every fill up, so it is always fun to see mpg numbers in the 60mpg range when coasting on a flat road at 45m/h.
Or the opposite way right after a fill up with a lot of full throttle take offs for the first few lights.
 

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2020 Outback Onyx XT
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Or the opposite way right after a fill up with a lot of full throttle take offs for the first few lights.
Or that, too.
 

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2020 Outback
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we just got a 2020 Outback and had the same issue, but after 3 tanks and approx 900 miles, it is starting to read more accurate.
 

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2020 Subaru Outback Onyx XT
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whew, thanks guys. we're on our 2nd tank at 17.1 mpg now. it's slowly going up - or going to the more accurate reading.
 

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2020 Outback Limited XT Black on Ivory
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I was told by a salespersom that the car has to learn over the first couple of tanks. Not sure that's true but mine read 13-16 MPG and random DTE numbers for a fill up or two. Try refilling and resetting the trip meter frequently for a week or so. I did that (twice weekly) and it now reads very accuratly. My at the pump MPG calcs are always within a tenth or two of the cars readout now.
 

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2016 2.5i Premium / 2020 2.5i Premium
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The car has probably done a lot of sitting and idling at the dealer before you picked it up for website pictures, etc. Once you continue actually driving the gas and not just idling the average MPG and the distance to empty will adjust accordingly.
Or the opposite way right after a fill up with a lot of full throttle take offs for the first few lights.

Hate to say it, but either one of those would not be an ideal break-in procedure, but unfortunately likely for vehicles sitting on the dealer lot for a while.
One more reason to factory order ....
 
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